Winding machine



June 27, 939- D. G. BAKER ET A1.

WINDING MACHINE Filed June 6, 1935 17 Sheebs--Sheecl 1 June 27, 1939. D. Q BAKER ET AL 2,153,578

WINDING MACHINE Filed June 6, 1935 17 Sheets-Sheet 2 D. G. BAKER ET A1.

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WINDING MACHINE Filed June 6, 1935 17 Sheets-Sheet 11 ATTORNEYS .June 27, 1939. D, G. BAKER ET Al.

WINDING MACHINE 17 sheets-sheet 12 Filed June 6, 1935 June 27, 1939- D. G. BAKER ET A1..

WINDING MACHINE Filed June 6, 1955 17 Sheets-Sheet 13 l TTORNEYS June 27, W39.

D. G. BAKER ET AL W'INDING MACHINE Filed June 6, 1955 17 Sheets-Sheet 14 www ' June 27', 1939. D. G. BAKER ET A1..

WINDING MACHINE Filed June 6, 1935 17 Sheets-Sheet 15 AoRNEYs June 27, 1939. D. G. BAKER ET Al. 2,163,578

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D. G. BAKER ET AL WINDING MACHINE Filed June 6, 1955 17 Sheets-Sheet 1'7 Patented June 27, 1939 UNITED STATES PATENT OFFICE 2,163,578 WINDINGr MACHINE Application June 6, 1935, Serial No. 25,206

40 Claims.

The present invention relates to winding machines, and has special reference to machines for winding thread cops with Universal or Fiji wind.

One of the objects of the invention is to provide a machine of this character which is capable of high speed operation, and requires a minimum amount of care and attention on the part of the operator.

Other of the objects of the present invention are to provide novel and improved mechanisms for starting the wind, fastening the thread, delivering cop cores to the machine, and dofng completely wound cops, and knockoff, yardage measuring and other mechanisms which jointly contribute to the eiiiciency of the multi-spindle automatic machine illustrated in the drawings. It will be apparent, however, that certain of such mechanisms are capable of separate use in single spindle and other types of winding machines.

The several features of the invention, whereby the above mentioned and other objects may be attained, will be understood from the following description and accompanying drawings, in

which:

Figure 1 is a plan view of a machine, certain parts broken away, embodying features of my invention in their preferred form;

Fig. 2 is a sectional View taken on the line 2-2 of Fig. 5;

Fig. 3 is a sectional view, partly in elevation, taken substantially on the line 3 3 of Fig. 1;

Fig. 4 is a detail sectional View, on an enlarged scale, taken on the line 4-4 of Fig. 3;

Fig. 5 is a detail sectional elevation of a portion of the mechanism for applying bobbin cores to the winding spindle;

Fig. 6 is a sectional plan view taken on the line G- of Fig. 3;

Fig. 7 is a detail sectional view taken on the lino '1 -'i oi Fig. 2;

Fig. 8 is a sectional development taken substantially on the line 8 8 of Fig. 6;

Fig. 9 is a iront elevation of a portion of the machine shown in Fig. l, the gure being a development;

Fig. 10 is a sectional view, on an enlarged scale taken on the line IG-I of Fig. 1;

l1 is a view similar to Fig. 10 but showing some 0f the parts in a different position;

Fig. 12 is a sectional view taken on the line l2i2 ci' Fig. 1;

Fig. 13 is a sectional vieW taken on the line [-3-13 of Fig. 1l;

Fig. 14 is a development section taken on the line lll-I4 of Fig. 1;

Figs. 15 and 16 are sectional elevations, on an enlarged scale, taken respectively on the lines l5-I5 and lB--IG of Fig. 3; 5

Fig. 17 is a sectional development taken on the line Il-l'l of Fig. l;

Fig. 18 is a sectional elevation of the thread starting mechanism taken on the line IB-I of Fig. 1; 10

Fig. 19 is a detail sectional elevation of a portion of said mechanism;

Figs. 20 and 21 are sectional views taken respectively on the lines 20-2 and 2I-2I of Fig.

Figs. 22 and 23 are respectively front views and top views of the thread holding and cutting de vices shown in Fig. 14;

Fig. 24 is an enlarged sectional view taken on the line 24-24 of Fig. 2l; 20

Fig. 25 is a section on the line 25-25 of Fig. 24; Fig. 26 is a section taken on the line 2li-26 of Fig. 27;

Fig. 27 is a sectional elevation of a portion of the thread starting mechanism with certain parts 25 in a different position from that shown in Fig. 18;

Fig. 28 is a view similar to Fig. 26 but showing the parts in a dilerent position;

Fig. 29 is a View similar to Fig. 27, showing the parts in diierent position; 30

Fig. 30 is a side elevation of the thread pressure mechanism, located on top of the creel;

Fig. 31 is a top plan view of the same, partly in section;

Fig. 32 is a front elevation, partly in section, of 35 the stop mechanism of the machine;

Fig. 33 is a detail sectional view taken on the line 33-33 OflFig. 32;

Fig. 34 is a sectional development taken on the line 34-34 of Fig. 1; 40

Fig. 35 is a section taken on the line 35-35 of Fig. 1;

- taken on the lines 39-39 and 40-4'0 of Fig. 37;

Fig. 41 is a frontelevation of the head of the thread fastening mechanism;

Fig. 42 is a section taken on the line 42--42 of Fig. 40; 55

Fig. 43 is a detail view in perspective of the thread cutting knife;

Fig. 44 is a side elevation of the thread fastening means about to engage the thread preparatory to fastening;

Fig. 45 is a front view of the mechanism shown in Fig. 44y with the parts in a different position;

Fig. 45 is similar to a portion of Fig. 45, showing another position of the parts;

Fig. 47 is a side view of the parts as shown in Fig. 46;

Fig. 48 is a view similar to Fig. 47 with the tucking blade shown in position to tuck in the thread;

Fig. 49 is a sectional plan View taken on the line i3- 19 of Fig. 48;

Fig. 50 is similar to Figs. 45 and 46 but with the thread shown severed after completion of the fastening;

Fig. 51 is a View similar to Fig. 4'? but with the severed ends of the thread being held preparatory to being moved into holding engagement with the thread holding clip;

Fig. 52 is similar to Fig. 5l showing the thread held by the clip;

Fig. 53 is a side view oi a completely wound and fastened thread cop;

Fig. 54 is a sectional View taken on the line 4-54 of Fig. 55;

Fig. 55 is a fragmentary top plan view of a portion of the dofng mechanism;

Fig. 56 is a sectional view taken on 56--56 of Fig. 55;

Fig. 57 is a sectional view taken on 5?-51 of Fig. 58;

Fig. 58 is a sectional View taken on 58--58 of Fig. 6, of the stopping and mechanism; and

Figs. 59 and 60 are sections on the lines 59--59 and '6G-55 of Fig. 58.

The machine illustrated in the drawings is particularly adapted for use in the manufacture of thread cops or bobbins ior the shuttles of sewing machines of the form. of the one shown in Figure 53. This bobbin comprises a tubular core 2 which may be of paper, and a mass of thread 4 cross wound on the core, preferably by means of a Universal or Fiji wind. The outer end oi the thread is fastened by means of a loop formed therein which is tucked a distance beneath one of the outer layers of thread.

As shown, the machine is provided with a series of twelve winding heads that are carried by an intermittently rotating turret S (Figs. land 3). Each of the winding heads comprises a winding spindle Eil, a rotary thread traverse guide I2, and a bridge i3.

At the completion oi each intermittent movement of the turret, a winding head is moved to a station A where a cop tube or core 2 is placed on the end ci the winding spindle ill (Fig. 11), and secured in position. Such delivery of the cop core to the spindle is eiected by means of a device lli which removes a core from a magazine tube l5 and positions it on the end of the spindle against a shoulder il' on the spindle tip, The spindle tip is then expanded to securely hold the core on the spindle tip and against said shoulder'.

The next movement of the turret positions the spindle with the cop core secured thereon at a station B where the end oi the thread associated with the winding head is applied to the core and the winding of the thread on the core is started.

Previously to the application of the thread t0 the line the line the line Starting the cop core and the starting of the wind, the end of the thread extending from the thread traverse guide l2 is held by a spring clip i8 (Figs. 18 and 26). As the Winding head reaches said second-mentioned station E, gripping jaws 25 grip the thread beneath the clip i8 and pull the thread upwardly and over the cop core that is on the spindle (Fig. 28). Thread retaining fingers 22 are then advanced and closed on the core. The upper fin-ger 22 engages the top of the core in a predetermined position, and is ol sufficient length to extend over the thread and thus clamp the thread to the core. The gripping jaws '5 then open so as to release the end of the thread and are retracted therefrom.

With the thread thus held by the retaining nger 22 on the cop core, the spindle is rotated so as to wind the thread on the core a number oi turns to start the wind. During this initial winding of the thread the retaining fingers 22 are rotated with the spindle and core so that a number of turns of thread are wound on the core and over the longer retaining ringer 22. In order to insure that the loose end of the thread shall lay properly on the core so as not to project from the ends of the nished package, a stream of compressed air may be directed by means oi a nozzle 24 across the top of the core. When a suiiicient number of turns of thread have been thus wound on the core to start the wind, the retaining ngers 22 are retracted therefrom.

During the next movement of the turret, the traverse guide i2 is moved into operative relation with the turns of thread on the core, and the spindle and guide are rotated so as to cross-wind. the thread on the core.

The winding operation continues during the subsequent intermittent movement of the turret until a predetermined yardage of thread has been wound on the core as determined by the diameter of the mass of thread. When the mass of thread is built up to a predetermined diameter or bulk, the winding spindle and traverse guide are brought to rest and remain at rest during the continued rotation of the turret to complete the cycle.

In the case of shuttle bobbins, for example, it is essential that the bobbins shall not exceed a specied diameter. The stopping of the winding when the bobbin has reached a predetermined diameter may result in some variation in yardage of the wound cops owing to variation in sizes of the thread and variation in tension. It will be understood that where it is desired to secure an exact predetermined yardage in the bobbins or cops independently of variation in the sizes of the thread and tension, suitable thread measuring devices (not shown) may be employed which instead of depending on the diameter of the mass, stop the winding when a predetermined yardage has been wound inrespective of variations in sizes of the thread or in the thread tension.

The continued intermittent movement of the turret carries the wound bobbin on its spindle to a station C where the traverse guide, the bobbin and spindle are indexed in a predetermined antrically to the axis of the winding spindle to deilect the thread upwardly and outwardly into the position shown in full lines in Fig. 45. Devices comprising a tucker locator or feeler 28 and a tucking finger 3l) are then advanced, and when the feeler 28 engages the surface of the wound mass, the locators 26 are retracted a distance so as to position the thread in a notch 32 in the end of the tucking finger 3Q. The feeler and tucking finger are then further advanced substantially tangentially to the surface of the wound mass so as to cause the tucking finger to loop the thread and to force the loop beneath a plurality of stretches of thread of the outer layer adjacent one side of the V of the wind.

In some cases cops are so wound that one or more depressed V-shaped surface portions are formed, as in the case of so-called one and onehalf wind, two wind, etc., where the winding spindle makes approximately one and one-half, two, or more revolutions to each cycle of operation of the traverse guide. In the case of so-calledsin gle wind cops where the winding spindle makes one revolution to each cycle of operation of the traverse guide, no depressed V is formed, there being no crossing of the thread except at the edges of the cop. In the case of cops of the firstmentioned wind where one or more depressed Vs are formed, it is preferable that the loop be tucked beneath the stretches of thread adjacent one side of one of the V's, rst beneath the last laid stretch and then beneath two or more of the next preceding laid stretches. Also, it is preferable that the point of tucking-in of the loop shall be spaced in proximity to the apex of the V so that there will be no danger of the tucking operation sloughing the thread at the edge of the cop and the loop is securely pinched by the tightly held portions of the cross threads adjacent the apex. In the case of cops of a single wind, the tucking-in is preferably effected near the peripheral center of the cop so as to avoid danger of sloughing of the thread during this operation.

In order to cause the tucking finger 3d and feeler 28 to properly operate on the cop during the fastening operation, the traverse guide and winding spindle are indexed after the completion of the winding of each cop so as to position the cop in a predetermined angular position with rcspect to the formation of the last laid helical coils of the wind.

When the loop of thread is thus positioned beneath the outer lay of the thread, the outer locator 26 moves inwardly to grip the thread against the inner locator and cause the thread to engage the edge of a knife 34, the outer locator 2t cooperating with the edge of the knife to sever the thread. The severed supply end of the thread is then carried by the locators 25 inwardly over the clip I8 and then back so as to cause the end of the thread to engage in the clip, whereupon'the locators open to release the thread and are returned to their initial position. Upon severing of the thread the feeler 28 and tucking finger 3l? are retracted from the thread mass, leaving the loop tucked under the outer coils.

The tucking iinger 33 has an extension or horn 33 which first enters beneath the outer coils to provide a space to receive the loop in the thread. The end of the horn is somewhat wedge-shape with rounded edges so as to permit it to easily enter beneath the coils without danger of splitting the wound thread.

The next movement of the turret after the fastening and severing of the thread, carries the winding head with the wound bobbin thereon to a station E where the wound bobbin is removed from its winding spindle. The means for thus removing the bobbin comprises a dofling blade 33 (Figs. l and 54) which is secured on the end of a rod or plunger 38. This dofng blade 36 is provided with a clearance notch it which is entered by the portion of the spindle back of the wound cop when the winding head is moved into the last-mentioned station. As the turret moves the winding head toward station E, the spindle tip is contracted so as to release the wound cop. When the turret reaches said sta.- tion the doihng blade is carried by its plunger 38 outwardly so as to engage one side of the thread mass and carry the bobbin therewith so as to discharge it from the spindle.

The dofng blade on its rear side carries a spring member d2 which is arranged closely adjacent the surface of the spindle. In case no thread is wound on the core, the doing blade 36 passes over the core until the end of the core is engaged by the edge of the member' 42, whereupon said member carries the core therewith from the sp-indle. The wound cop drops from the spindle into a chute [i4 which directs it into one of a series of receptacles li on a rotating table d8. There are twelve receptacles [i6 and the table 4E is intermittently rotated in timed relation to the turret, so that the wound bobbins discharged from each spindle are delivered to a separate receptacle. By this means different colors or sizes of threads may be wound on different spindles and kept separate.

Fre-n1 lzfobbin doiing position, the next movement of the turret returns the winding head to the core receiving station A, first described, ready to receive another core to' be wound. The foregoing is a description of a cycle of operation of the machine for each spindle.

The turret 8 (Figs. l, 3 and 6) is secured on the upper end of a tubular shaft 5&1 which extends through and is journaled in a bearing sleeve 52 secured in an aperture in a table 54 that forms a part of the machine frame. The turret is driven through a Geneva gearing comprising the usual star-shaped driven member 56 secured on the lower end of the hollow shaft 5i?, and a driving member 53 secured on the upper end of a vertical shaft 60. rIhe shaft 6i! (Fig. 3) is driven through gears 62 by a shaft Sli which is connected through reducing gears 65 with the shaft of an electric motor 58.

Each of the winding spindles iii consists of a tubular member (Fig. l5), the core receiving outer end or tip of which is provided with slots 'lli so as to enable said end to be expanded to secure the core thereto when the core has been positioned thereon against the shoulder il from the magazine tube i6, and to be contracted to release the core preliminary to the discharge of the wound bobbin from the spindle.

The end of the spindle ill is thus expanded by means of a plunger rod l2, the outer` or forward end of which is tapered and extends into the slotted tip of the spindle so that upon forward movement of the rod, said end of the spindle is expanded and upon retraction of the rod the resiliency of the end of the spindle returns it to its initial contracted condition.

The spindle l@ is mounted to turn in a ballbearing 'ill mounted on the outer side of the turret. rhe spindle is held from axial movement by a shoulder 'l5 thereon which engages the inner side of said ball-bearing 'M and 

